6
1
5
		2	1		4	7	6
4	5	6		3	8
							7
							4
		8

Difficulty: Very easy (0)

6				4	1
		7	5		8
		5	6	7
2
							8
			2	5	3
		2		6	7
		6	8				2

Difficulty: Super easy (0)

4	2		5		8		1
	5		1	8		7	2
2	8		3	5		1
7		1		4		5	8

Difficulty: Very easy (0)

			2			8
8	5	3	4
						1
				6
			8
	2
				4	6	7	2
	4			8

Difficulty: Easy (0)